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Hernández-Balaguera, E. (author), Romero, B. (author), Najafi, M. (author), Galagan, Y. (author)Interface engineering has become one of the most important research strategies to harness the full potential of perovskite solar cells. Photovoltaic community seems to herald the imminent development of 30% efficient perovskite devices with competitive lifetimes, subject, among other aspects, to clarify “what happens under the interfaces.” One...article 2022
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López-González, M.C. (author), Del Pozo, G. (author), Martín-Martín, D. (author), Muñoz-Díaz, L. (author), Pérez-Martínez, J.C. (author), Hernández-Balaguera, E. (author), Arredondo, B. (author), Galagan, Y. (author), Najafi, M. (author), Romero B., (author)Perovskite solar cells (PSCs) have become very popular due to the high efficiencies achieved. Nevertheless, one of the main challenges for their commercialization is to solve their instability issues. A thorough understanding of the processes taking place in the device is key for the development of this technology. Herein, J-V measurements have...article 2021
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Hernández-Balaguera, E. (author), Romero, B. (author), Arredondo, B. (author), del Pozo, G. (author), Najafi, M. (author), Galagan, Y. (author)The potential opportunities of perovskite-based technology to further advance in the photovoltaic field and implement an extensive industrial application, will mainly depend on whether some of its weaknesses, such as current density-voltage (J−V) hysteresis, can be overcome. In this sense, a critical aspect is the understanding and the...article 2020
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López-Fraguas, E. (author), Arredondo, B. (author), Vega-Colado, C. (author), Pozo, G.D. (author), Najafi, M. (author), Martín-Martín, D. (author), Galagan, Y. (author), Sánchez-Pena, J.M. (author), Vergaz, R. (author), Romero, B. (author)The past few years have seen a great increase in the development of Visible Light Communication systems (VLC), mainly triggered by the wide variety of situations they can be used in. These communication systems have traditionally employed inorganic light emitters and photodetectors. In this work, we present a VLC system using an organic emitter...article 2019
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Romero, B. (author), del Pozo, G. (author), Arredondo, B. (author), Martin-Martin, D. (author), Hernandez-Balaguera, E. (author), Najafi, M. (author), Galagan, Y. (author)Perovskite Solar Cells (PSC) have attracted great attention due to the high efficiencies achieved in the past few years (up to 24.2 %). Perovskite semiconductors show excellent light absorption and large charge-carrier mobilities. In addition, device fabrication is low cost and easily up-scalable. However, the current density-voltage curve (J-V)...conference paper 2019
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Ciammaruchi, L. (author), Oliveira, R. (author), Charas, A. (author), von Hauff, E. (author), Polino, G. (author), Brunetti, F. (author), Hansson, R. (author), Moons, E. (author), Krassas, M. (author), Kakavelakis, G. (author), Kymakis, E. (author), Sánchez, J.G. (author), Ferre-Borrull, J. (author), Marsal, L.F. (author), Züfle, S. (author), Fluhr, D. (author), Roesch, R. (author), Faber, T. (author), Schubert, U.S. (author), Hoppe, H. (author), Bakker, N.J. (author), Veenstra, S.C. (author), Zanotti, G. (author), Katz, E.A. (author), Apilo, P. (author), Romero, B. (author), Tumay, T.A. (author), Parlak, E. (author), Stagno, L.M. (author), Turkovic, V. (author), Rubahn, H.G. (author), Madsen, M. (author), Kažukauskas, V. (author), Tanenbaum, D.M. (author), Shanmugam, S. (author), Galagan, Y. (author)This work is part of the interlaboratory collaboration to study the stability of organic solar cells containing PCDTBT polymer as a donor material. The varieties of the OPV devices with different device architectures, electrode materials, encapsulation, and device dimensions were prepared by seven research laboratories. Sets of identical devices...article 2018